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June 11th, 2026 :: 5:28 am CDT   

Local Weather Report for
Decatur
Illinois, United States

 Current Decatur Weather Conditions Updated June 11th at 3:54 am 
moderate rain mist
Temperature:66°F Dew Point:66°F
Barometer:29.8 inHg Wind:N 26 Mph
Humidity:100.0% Visibility:0M
 
 Decatur Weather Forecast Summary  
 
Today
Jun 11th
Friday
Jun 12th
Saturday
Jun 13th
Sunday
Jun 14th
Monday
Jun 15th
Thundershowers Mostly Cloudy with Showers Mix of Cloud and Sun Mostly Sunny Mostly Sunny
90°F
77°F
58°F
75°F
62°F
70°F
58°F
70°F
53°F
 
 Decatur Detailed Weather Forecast  
 
Thursday, June 11th, 2026
Morning Temperature: 78°F
Mostly sunny with showers likely. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 89°F
Mostly sunny. Chance of a thunderstorm. Windy.
Evening Temperature: 76°F
Mostly clear with showers. Chance of a thunderstorm. Windy.
Friday, June 12th, 2026
Overnight Temperature: 60°F
Clear with a few showers. Windy at times.
Morning Temperature: 64°F
Sunny.
Afternoon Temperature: 76°F
Sunny.
Evening Temperature: 71°F
Clear.
Saturday, June 13th, 2026
Overnight Temperature: 63°F
Mostly clear.
Morning Temperature: 68°F
Mostly sunny. Windy at times.
Afternoon Temperature: 71°F
Cloudy with a slight chance of showers. Windy at times.
Evening Temperature: 69°F
Cloudy with clear periods with a slight chance of showers or thundershowers.
Sunday, June 14th, 2026
Overnight Temperature: 66°F
A mix of clear and cloudy skies with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Morning Temperature: 63°F
Sunny with cloudy periods with a chance of showers. Windy at times.
Afternoon Temperature: 68°F
Sunny. Windy.
Evening Temperature: 61°F
Mostly clear. Windy at times.
Monday, June 15th, 2026
Overnight Temperature: 54°F
Clear.
Morning Temperature: 61°F
Sunny. Windy at times.
Afternoon Temperature: 70°F
Sunny. Windy at times.
Evening Temperature: 62°F
Mostly clear.
Tuesday, June 16th, 2026
Overnight Temperature: 54°F
Mostly clear.
Morning Temperature: 61°F
Mostly cloudy. Windy at times.
Afternoon Temperature: 72°F
Sunny with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 63°F
Clear with a chance of showers. Slight chance of a thunderstorm.
Wednesday, June 17th, 2026
Overnight Temperature: 58°F
Mostly clear.
Morning Temperature: 66°F
Sunny. Windy at times.
Afternoon Temperature: 78°F
Sunny. Windy at times.
Evening Temperature: 72°F
Mostly clear. Windy.
Thursday, June 18th, 2026
Overnight Temperature: 68°F
Clear with cloudy periods. Windy.
Morning Temperature: 70°F
Sunny with cloudy periods with a slight chance of showers. Windy.
Afternoon Temperature: 80°F
Sunny with cloudy periods. Chance of a thunderstorm. Windy.
Evening Temperature: 73°F
Clear. Chance of a thunderstorm.
Friday, June 19th, 2026
Overnight Temperature: 64°F
Mostly clear.
Morning Temperature: 66°F
Sunny with cloudy periods.
Afternoon Temperature: 77°F
A mix of sun and cloud.
Evening Temperature: 73°F
Mostly cloudy with a slight chance of showers or thundershowers.





 

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thunderstorm light rain

 
This WeatherCity Weather Forecast for Decatur, Illinois, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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